/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

var zrUtil = require("static/plugins/js/zrender/lib/core/util");

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * Can only be called after coordinate system creation stage.
 * (Can be called before coordinate system update stage).
 *
 * @param {Object} opt {labelInside}
 * @return {Object} {
 *  position, rotation, labelDirection, labelOffset,
 *  tickDirection, labelRotate, z2
 * }
 */
function layout(gridModel, axisModel, opt) {
    opt = opt || {};
    var grid = gridModel.coordinateSystem;
    var axis = axisModel.axis;
    var layout = {};
    var otherAxisOnZeroOf = axis.getAxesOnZeroOf()[0];
    var rawAxisPosition = axis.position;
    var axisPosition = otherAxisOnZeroOf ? "onZero" : rawAxisPosition;
    var axisDim = axis.dim;
    var rect = grid.getRect();
    var rectBound = [rect.x, rect.x + rect.width, rect.y, rect.y + rect.height];
    var idx = {
        left: 0,
        right: 1,
        top: 0,
        bottom: 1,
        onZero: 2,
    };
    var axisOffset = axisModel.get("offset") || 0;
    var posBound =
        axisDim === "x"
            ? [rectBound[2] - axisOffset, rectBound[3] + axisOffset]
            : [rectBound[0] - axisOffset, rectBound[1] + axisOffset];

    if (otherAxisOnZeroOf) {
        var onZeroCoord = otherAxisOnZeroOf.toGlobalCoord(
            otherAxisOnZeroOf.dataToCoord(0)
        );
        posBound[idx.onZero] = Math.max(
            Math.min(onZeroCoord, posBound[1]),
            posBound[0]
        );
    } // Axis position

    layout.position = [
        axisDim === "y" ? posBound[idx[axisPosition]] : rectBound[0],
        axisDim === "x" ? posBound[idx[axisPosition]] : rectBound[3],
    ]; // Axis rotation

    layout.rotation = (Math.PI / 2) * (axisDim === "x" ? 0 : 1); // Tick and label direction, x y is axisDim

    var dirMap = {
        top: -1,
        bottom: 1,
        left: -1,
        right: 1,
    };
    layout.labelDirection =
        layout.tickDirection =
        layout.nameDirection =
            dirMap[rawAxisPosition];
    layout.labelOffset = otherAxisOnZeroOf
        ? posBound[idx[rawAxisPosition]] - posBound[idx.onZero]
        : 0;

    if (axisModel.get("axisTick.inside")) {
        layout.tickDirection = -layout.tickDirection;
    }

    if (zrUtil.retrieve(opt.labelInside, axisModel.get("axisLabel.inside"))) {
        layout.labelDirection = -layout.labelDirection;
    } // Special label rotation

    var labelRotate = axisModel.get("axisLabel.rotate");
    layout.labelRotate = axisPosition === "top" ? -labelRotate : labelRotate; // Over splitLine and splitArea

    layout.z2 = 1;
    return layout;
}

exports.layout = layout;
